Salisbury Bancorp (SAL) POS AMProspectus update (post-effective amendment)

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This Post-Effective Amendment (the “Post-Effective Amendment”) relates to the following Registration Statements of Salisbury Bancorp, Inc. (the “Company”) on Form S-3 (collectively, the “Registration Statements”).

On August 11, 2023 (the “Effective Time”), the Company completed the merger contemplated by the Agreement and Plan of Merger (the “Merger Agreement”), dated as of December 5, 2022, among the Company, NBT Bancorp, Inc. (“NBT”), NBT Bank, N.A., NBT’s subsidiary bank (“NBT Bank”), and the Company’s subsidiary bank, Salisbury Bank and Trust Company (“Salisbury Bank”), as amended by the First Amendment to the Merger Agreement dated August 9, 2023. Pursuant to the Merger Agreement, the Company was merged with and into NBT (the “Merger”), with NBT as the surviving entity and, immediately thereafter, Salisbury Bank was merged with and into NBT Bank, with NBT Bank as the surviving bank. Upon consummation of the Merger, at the Effective Time, each issued and outstanding share of Common Stock of the Company (other than shares owned by the Company, NBT or any of their respective subsidiaries (which shares were canceled)) was automatically converted into the right to receive 0.7450 shares of NBT common stock.

As a result of the Merger, the Company has terminated any and all offerings of its securities pursuant to the Registration Statement. Accordingly, the Company hereby terminates the effectiveness of the Registration Statement and, in accordance with any undertaking made by the Company in the Registration Statement to remove from registration, by means of a post-effective amendment, any and all securities that had been registered for issuance but remain unsold at the termination of the offering, removes from registration any and all securities of the Company that were registered under the Registration Statement and remain unsold at the termination of the offerings. The Registration Statement is hereby amended, as appropriate, to reflect the deregistration of such securities.

Note: No other person is required to sign this Post-Effective Amendment to the Registration Statement on Form S-3 in reliance upon Rule 478 under the Securities Act of 1933.